| Person | Type | Job | Role(s) |
|---|---|---|---|
 Carter DeHaven | Crew | Production | Producer |
Dario Simoni | Crew | Art | Set Decoration |
Edward Scaife | Crew | Camera | Director of Photography |
Elven Webb | Crew | Art | Art Direction |
George Frost | Crew | Costume & Make-Up | Makeup Supervisor |
Gladys Hill | Crew | Writing | Screenplay |
John Furniss | Crew | Costume & Make-Up | Costume Design |
 John Huston | Crew | Directing | Director, Screenplay, Producer |
Noel Behn | Crew | Writing | Novel |
Robert Drasnin | Crew | Sound | Original Music Composer |
Robert Lennard | Crew | Production | Casting |
Russell Lloyd | Crew | Editing | Editor |
Sam Wiesenthal | Crew | Production | Producer |
Ted Haworth | Crew | Art | Production Design |
 Anthony Chinn | Cast | Actor | Kitai |
 Barbara Parkins | Cast | Actress | B. A. |
 Bibi Andersson | Cast | Actress | Erika Kosnov |
Brandon Brady | Cast | Actor | Clocker Dan (uncredited) |
 Christopher Sandford | Cast | Actor | Rudolph |
 Cyril Shaps | Cast | Actor | Police Doctor |
 Dean Jagger | Cast | Actor | Highwayman |
 George Pravda | Cast | Actor | Kazar |
 George Sanders | Cast | Actor | Warlock |
 Guy Deghy | Cast | Actor | Professor |
 Hana Maria Pravda | Cast | Actress | Mrs. Kazar |
John Huston | Cast | Actor | Admiral |
 Larry Cross | Cast | Member of Tillnger Foundation (uncredited) | |
 Lila Kedrova | Cast | Actress | Madam Sophie |
 Ludmilla Dudarova | Cast | Actress | Mrs. Potkin |
 Marc Lawrence | Cast | Actor | The Priest |
 Max von Sydow | Cast | Actor | Colonel Kosnov |
 Niall MacGinnis | Cast | Actor | Erector Set |
 Nigel Green | Cast | Actor | The Whore |
 Orson Welles | Cast | Actor | Bresnavitch |
 Patrick O'Neal | Cast | Actor | Charles Rone |
 Pehr-Olof Sirén | Cast | Actor | Receptionist |
 Raf Vallone | Cast | Actor | Puppet Maker |
 Richard Boone | Cast | Actor | Ward |
 Sandor Elès | Cast | Actor | Lt. Grodin |
 Steffen Zacharias | Cast | Actor | Dittomachine |
Victor Beaumont | Cast | Actor | The Dentist |
 Vonetta McGee | Cast | Actress | The Negress |
 Ronald Radd | Cast | Actor | Captain Potkin |
 Micheál Mac Liammóir | Cast | Actor | Sweet Alice |
Dimitri Tamarov | Cast | Ilya | |
 Saara Ranin | Cast | Actress | Mikail's Mother |
Fulvia Ketoff | Cast | Sonia Potkin | |
Laura Forin | Cast | Elena Potkin | |
Rune Sandlund | Cast | Mikhail (uncredited) | |
Sacha Carafa | Cast | Mrs. Grodin | |
Daniel Smid | Cast | Waiter | |
| Person | Type | Job | Role(s) |
